Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 23 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.291 × 297 =
2. 2.77 × 76 =
3. 3.197 × 193 =
4. 4.26 × 28 =
5. 5.591 × 596 =
6. 6.59 × 58 =
7. 7.602 × 603 =
8. 8.38 × 38 =
9. 9.54 × 51 =
10. 10.401 × 409 =
11. 11.81 × 83 =
12. 12.36 × 37 =
13. 13.199 × 193 =
14. 14.83 × 82 =
15. 15.22 × 22 =
16. 16.22 × 24 =
17. 17.608 × 604 =
18. 18.398 × 398 =
19. 19.594 × 596 =
20. 20.22 × 21 =
21. 21.68 × 69 =
22. 22.18 × 16 =
23. 23.31 × 33 =
24. 24.404 × 401 =
25. 25.207 × 205 =
26. 26.79 × 76 =
27. 27.92 × 91 =
28. 28.63 × 61 =
29. 29.29 × 26 =
30. 30.62 × 61 =
31. 31.209 × 203 =
32. 32.84 × 81 =
33. 33.84 × 84 =
34. 34.41 × 43 =
35. 35.28 × 29 =
36. 36.41 × 41 =
37. 37.26 × 26 =
38. 38.306 × 304 =
39. 39.18 × 16 =
40. 40.36 × 36 =

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